| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkBitmap.h" |
| #include "SkCanvas.h" |
| #include "SkHighContrastFilter.h" |
| #include "Test.h" |
| |
| DEF_TEST(HighContrastFilter_FilterImage, reporter) { |
| SkHighContrastConfig config; |
| config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertLightness; |
| |
| int w = 10, h = 10; |
| SkBitmap filterResult, paintResult; |
| |
| filterResult.allocN32Pixels(w, h); |
| SkCanvas canvasFilter(filterResult); |
| canvasFilter.clear(0x00000000); |
| |
| paintResult.allocN32Pixels(w, h); |
| SkCanvas canvasPaint(paintResult); |
| canvasPaint.clear(0x00000000); |
| |
| SkPaint paint; |
| paint.setColor(SK_ColorBLUE); |
| SkRect r = SkRect::MakeLTRB(SkIntToScalar(2), SkIntToScalar(2), |
| SkIntToScalar(8), SkIntToScalar(8)); |
| canvasPaint.drawRect(r, paint); |
| |
| paint.setColorFilter(SkHighContrastFilter::Make(config)); |
| canvasFilter.drawRect(r, paint); |
| |
| for (int y = r.top(); y < r.bottom(); ++y) { |
| for (int x = r.left(); x < r.right(); ++x) { |
| SkColor paintColor = paintResult.getColor(x, y); |
| SkColor filterColor = filterResult.getColor(x, y); |
| REPORTER_ASSERT( |
| reporter, filterColor == |
| paint.getColorFilter()->filterColor(paintColor)); |
| } |
| } |
| } |
| |
| DEF_TEST(HighContrastFilter_SanityCheck, reporter) { |
| SkHighContrastConfig config; |
| config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertLightness; |
| sk_sp<SkColorFilter> filter = SkHighContrastFilter::Make(config); |
| |
| SkColor white_inverted = filter->filterColor(SK_ColorWHITE); |
| REPORTER_ASSERT(reporter, white_inverted == SK_ColorBLACK); |
| |
| SkColor black_inverted = filter->filterColor(SK_ColorBLACK); |
| REPORTER_ASSERT(reporter, black_inverted == SK_ColorWHITE); |
| } |
| |
| DEF_TEST(HighContrastFilter_InvalidInputs, reporter) { |
| SkHighContrastConfig config; |
| REPORTER_ASSERT(reporter, config.isValid()); |
| |
| // Valid invert style |
| config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertBrightness; |
| REPORTER_ASSERT(reporter, config.isValid()); |
| config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertLightness; |
| REPORTER_ASSERT(reporter, config.isValid()); |
| sk_sp<SkColorFilter> filter = SkHighContrastFilter::Make(config); |
| REPORTER_ASSERT(reporter, filter); |
| |
| // Invalid invert style |
| config.fInvertStyle = static_cast<SkHighContrastConfig::InvertStyle>(999); |
| REPORTER_ASSERT(reporter, !config.isValid()); |
| filter = SkHighContrastFilter::Make(config); |
| REPORTER_ASSERT(reporter, !filter); |
| |
| // Valid contrast |
| config.fInvertStyle = SkHighContrastConfig::InvertStyle::kInvertBrightness; |
| config.fContrast = 0.5f; |
| REPORTER_ASSERT(reporter, config.isValid()); |
| filter = SkHighContrastFilter::Make(config); |
| REPORTER_ASSERT(reporter, filter); |
| |
| // Invalid contrast |
| config.fContrast = 1.1f; |
| REPORTER_ASSERT(reporter, !config.isValid()); |
| filter = SkHighContrastFilter::Make(config); |
| REPORTER_ASSERT(reporter, !filter); |
| } |